Sopyan D, MaarifMS, AffandiJ, ArsyiantiLD. Nurturing The Ecosystem of Hajj and Umrah Business in Indonesia: A Model For Development. IJBE [Internet]. 2023Sep.13 [cited 2024May20];9(3):359. Available from: https://jurnal.ipb.ac.id/index.php/ijbe/article/view/46427